AI Checker Tool

AI Checker Tool delivers a free, unlimited‑word AI detection service that aggregates four independent detectors to bring false positives down to essentially zero. Users can paste text, upload a document, or submit a URL for analysis. The scanner supports up to 5 000 words in a single request, with two minutes per scan on average. Each scan produces an overall AI probability score, detailed per‑sentence confidence values, a color‑coded heatmap, and an exportable PDF report that lists sentences with their individual detector scores.

The tool is practical for educators, students, writers, and marketing teams who need to confirm that a piece of content is authentic. Teachers can copy and paste student essays, bulk import assignments, and track each student's history using the built‑in teacher dashboard. Students can paste their draft to self‑check before submission, with unlimited scans at no cost. Content creators can scan their own articles or copy‑edited copy for human authenticity, while marketing teams can batch process web copy and measure SEO impact.

When a scan starts, the four detectors (built‑in AI Detector, Originality.ai, Winston AI, GPTZero) run in parallel. The system records the score each detector assigns to every sentence, then displays the distribution: sentences flagged as AI appear in red, mixed signals in orange, and likely human sentences in green. The overall score reflects the consensus of the four detectors. If all four agree on AI, the result is considered reliable; if detectors disagree, the tool shows the split so you can decide whether to re‑write or keep the text. Exporting the PDF captures the heatmap, sentence‑level scores, and overall percentage, making it ready for compliance or documentation.

The platform also offers optional features that consume credits per word: a plagiarism checker that cross‑references the web, a spell checker, and a fact‑check module. Credits are only used when those detectors are enabled. For example, activating Originality.ai costs 2 credits per 100 words, while a plagiarism check costs 1 credit per 100 words. Credits are deducted automatically after each scan. The free service places no credit restriction on the built‑in detector.

The listing does not disclose any subscription or monthly plan options, nor does it provide a public pricing page for credit packs.